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    Large-Scale Biaxial Shake-Table Studies of a Precast Bridge Model

    Source: Journal of Structural Engineering:;2021:;Volume ( 147 ):;issue: 007::page 04021104-1
    Author:
    José Benjumea
    ,
    M. “Saiid” Saiidi
    ,
    Ahmad Itani
    DOI: 10.1061/(ASCE)ST.1943-541X.0003060
    Publisher: ASCE
    Abstract: Shake-table studies were conducted on a large-scale, two-span accelerated bridge construction (ABC) bridge model that incorporated 38 precast concrete elements and six emulative ABC connection types. The studies were aimed to assess the seismic performance of the bridge model and the six ABC connections under biaxial horizontal ground motions simulated at the Earthquake Engineering Laboratory at the University of Nevada, Reno. The bridge model was subjected to successive earthquake motions ranging from 20% to 200% of the design earthquake motion. Test results showed that the ABC bridge model matched the target performance of cast-in-place (CIP) bridges by limiting plastic hinging to columns and maintaining other components as damage-free. The ABC connections maintained the structural integrity of the system even under drift ratio demands on the columns higher than 7.5% combined with substantial in-plane rotation (e.g., larger than 0.008 rad) of the superstructure.
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      Large-Scale Biaxial Shake-Table Studies of a Precast Bridge Model

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4270433
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    • Journal of Structural Engineering

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    contributor authorJosé Benjumea
    contributor authorM. “Saiid” Saiidi
    contributor authorAhmad Itani
    date accessioned2022-01-31T23:50:07Z
    date available2022-01-31T23:50:07Z
    date issued7/1/2021
    identifier other%28ASCE%29ST.1943-541X.0003060.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4270433
    description abstractShake-table studies were conducted on a large-scale, two-span accelerated bridge construction (ABC) bridge model that incorporated 38 precast concrete elements and six emulative ABC connection types. The studies were aimed to assess the seismic performance of the bridge model and the six ABC connections under biaxial horizontal ground motions simulated at the Earthquake Engineering Laboratory at the University of Nevada, Reno. The bridge model was subjected to successive earthquake motions ranging from 20% to 200% of the design earthquake motion. Test results showed that the ABC bridge model matched the target performance of cast-in-place (CIP) bridges by limiting plastic hinging to columns and maintaining other components as damage-free. The ABC connections maintained the structural integrity of the system even under drift ratio demands on the columns higher than 7.5% combined with substantial in-plane rotation (e.g., larger than 0.008 rad) of the superstructure.
    publisherASCE
    titleLarge-Scale Biaxial Shake-Table Studies of a Precast Bridge Model
    typeJournal Paper
    journal volume147
    journal issue7
    journal titleJournal of Structural Engineering
    identifier doi10.1061/(ASCE)ST.1943-541X.0003060
    journal fristpage04021104-1
    journal lastpage04021104-14
    page14
    treeJournal of Structural Engineering:;2021:;Volume ( 147 ):;issue: 007
    contenttypeFulltext
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